Non-synchronous receiving-perforator.



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No. 896,784. PATENTED AUG. 25, 1908.. M. T. WESTON. NON-SYNGHRONOUSRECEIVING PERFGRATUE.

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APPLICATION FILED NOV. 26, 1904. RENBWED JAN. 1B, 1908.

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No. 896,784. PATENTED AUG. 25, 1908. M. T. WESTON.

NON-SYNGHRUNOUS RECEIVING PERPORATOR.

APPLIATION FILED NOV. 26, 1904. RENEWED JAH. 18, 1908.

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MILTON T. WESTON, OF NEW YORK, N. Y.

NON-SYNCHRONOUS RECEIVING-PERFORATOR.

Speccaton of Letters Patent.

Patented Aug. 25, 1908.

Application filed November 26, 1904, Serial No. 234,432. Renewed January18, 1908. Serial No. 411,497.

To all whom it may concern:

Be it known that I, MILTON T. WESTON, a citizen of the United States,residing in the borough of Manhattan, in the city, county, and State ofNew York, have invented certain new and useful Improvements in N on-Synchronous Receiving-Perforators, of which the following is aspecification.

My invention relates to a perforator for electric telegraph systems.

It is especially concerned with a receiving perforator in which theactual work of perforating a strip of paper is done by mechanical meansinstead of by electrical means as was heretofore the custom.

The object of my invention is to produce a nonsynchronous receivingperforator of high speed and small current.

It is obvious that where the punch is operated electrically, the currentmust be of sufficient strength and duration to energize the punchingmagnet suiiiciently to overcome the inertia of its armature and do theactual work of perforating. The speed of the machines now in use is thusvery much restricted. In my device this restriction is done away withentirely, and there is practically no limitation to the speed. Moreover,the strength of current required in the operation of my perforator isvery small in comparison with that required by previously used machines.It takes advantage of the law that the attraction of a magnet for itsarmature is inversely proportional to the square of the distance betweenthem. This is accomplished by moving the armature over to its magnet bymechanical means where it may be easily held by a comparatively smallcurrent.

Many features of novelty will present themselves in the description ofthe apparatus in detail and. these will be particularly pointed out inthe claims.

In order that my invention may be clearly understood I have hereuntoappended two sheets of drawings showing various views of the machine, inwhich Figure 1 is a central longitudinal elevation of the machine,showing the wiring, Fig. 2 is a cross sectional elevation of the machineon line II II of Fig. 1. Fig. 3 is a detail view of the armature latchesand the magnet core, Fig. 4 is a detail view of the automatic-clutch,Fig. 5 is a detail view of the single punch, Fig. 6 is a detail view ofa double punch, and Fig. 7 is a detail sectional view showing the lastposition of the operation of the mechanical means for moving thearmature over to its magnet core, on line VII of Fig. 2. Fig. 8 is aview similar to Fig. 7 (taken on the line VIII of Fig. 12) showing theentire hammer and the circuit closers located between the journal rings23. Fig. 9 is a plan view ofthe portion of the apparatus shown in Fig.8. Fig. 10 is a sectional detail view, (taken on the line X-X of Fig.8), showing the hammer closed. Fig. 11 is a similar view showing thehammer open, and in the act of striking the perforating punch. Fig. 12is a detail view, (taken on the line XII-XII of Fig. 8), showing the camfor freeing the latch arms of the hammers from the armature latches.

Referring now in detail to said drawings, 10 designates the base plateof the machine, at the two ends of which are erected the standards 11,12. A plate 13 extends across the upper ends of these standards.Journaled in journal bearings 14, 15 in said standards is a rotatingshaft 16 which is rotated by a driving pulley 17 fixedly securedthereto. Pulley 17 may be driven by any suitable driving mechanism (notshown). The rotating shaft 16 also carries a cylinder or drum 18 whichhas a large central body portion, and end portions of smaller diameter,as clearly shown in Fig. 1 of the drawings. This cylinder 18 is providedwith two longitudinal passages 19 and 20 for certain wires, which willbe described hereinafter. This cylinder serves as the basal member uponwhich several of the other members of the apparatus are mounted. Ahammer carrying ring 21 fits over the large central body portion of saidcylinder, and is provided on its periphery with two pairs of journalrings 22 and 23. Each pair of said journal rings 22 and 23, serves asthe mounting for a row of hammers 24 or 25. Each of said hammerscomprises a shaft s, a latch arm Z, and a weighted hammer h (see Fig.9). Mounted on said shaft portion, between the journal rings, is acircuit closer 24 or 25 which serves to close a local circuit which willbe described hereinafter. Said circuit closer also serves as a stop forpreventing the hammer from swinging too far. Mounted on the end portionof said drum 18 is a magnet core 26 which is in the form of a diskhaving a circular recess concentric with the center of the disk andforming a depression in which the magnet co1l 27 hes. (See Figs. 1 and3.)

An armature plate 28 in the form of a spider is screwed on the face ofthis core by screws 29, and its arms 28 which I designate armaturelatches are flexible so that they may be mechanically moved over to thecore, and will spring back when freed, as will be described hereinafter.

A magnet core 30 having a coil 31 and an armature 32 with arms 32, allof which are in every way similar to those already described iscorrespondingly mounted upon the other end portion of said cylinder 18.Besides the above mentioned magnets, these end portions have mountedupon them insulating rings 33 and 34, conducting rings 35 and 36,insulating rings 37 and 38; conducting rings 39 and 40; and insulatingrings 41 and 42 these members being positioned on said cylin der in theorder stated from innermost to outermost, the insulating ring 41 lyingimmediately adjacent the pulley 17, described above. A bevel gear wheel43 mounted on the shaft 16 opposes the insulating ring 42 and preventsits displacement. Said bevel gear wheel 43 is in mesh with a bevel gearwheel 44 on one end of a shaft 45, which is held in position by abracket 46 on the standard 11 and a bracket 47 on the plate 13, so thatthe shaft 45 rotates with the shaft 16. A worm wheel 48 is mounted onthe other end of the shaft 45, which in turn meshes with the gear wheelof a clutch member 49 loosely mounted on a rotatable shaft 50; saidshaft 50 is journaled in a bracket 51 and an arm 47 of the bracket 47,both of which brackets are secured to the plate 13. For rotating theshaft 50, there is splined thereon a clutch member 52 which may be slidinto engagement with the clutch member 49 by means of a lever 53 (seeFig. 4) which is pivoted at 54 and operated by an automaticallyenergized magnet 55. A spring 56 secured at one end to a lug 57 and atthe other end to the armature end of said lever 53 serves the purpose ofopening the clutch when the rotation of the shaft 50 is to be stopped.rlhe circuit which energizes the magnet 55 will be describedhereinafter. When it is desired to maintain the shaft 50 in constantrotation with the shaft 16, the lever 53 may be manually operated by thecam 55.

The purpose of the shaft 50 is to feed the paper web or ribbon 58 pastthe punch or punches, in order that the perforation thereof may beaccomplished. For this purpose, I mount upon the shaft 50 a drum 59which is provided with traction lugs 60, operating in correspondingholes 61 in the web. Thus when the clutch members are in engagement witheach other, the paper web or ribbon is caused to travel past the punchor punches, which will now be described.

The punches are shown in detail in Figs. 5 and 6. Fig. 5 shows thesingle punch while Fig. 6 shows the double punch. The machine is made tooperate either the single or double punch, according to which alphabetis to be employed. Where the single punch is used, the perforationswill, of course, be made in a single line, and where the double punch isemployed, the perforations will be in two lines, and thus thecombination will be different. The punch shown in Fig. 5 will serve toillustrate both, it being understood that the two punches would beconstructed in the same way as the one. 1n said punch, 62 designates thecasing or block suitably supported by the plate 13, 63 the punch, 64 anut thereon against which a spring 65 abuts, the other end of saidspring being opposed to a portion of the casing 62. An anvil 66 integralwith said punch 63 operates the same against the tension of spring 65,and the paper web 58 is backed by a die 67.

In the operation of my improved perforator, the drum 18 is rapidlyrevolved by the shaft 16 and the hammers 24 and 25 are normally held inlocked position by means of their latch arms, and the armature latches28,and 32. But these hammers are selectively released at certainintervals determined by the operator or transmitter, in the mannerhereinafter described, and as a hammer is released it swings outwardlyby centrifugal force. As it reaches a position at the upper portion ofthe cycle of the cylinder its weighted hammer portion strikes againstthe anvil 66 and thus causes a perforation to be made in the web 58.Upon rebounding it is at once locked in normal position by its latch armengaging with the armature latch.

The means for effecting the release of the hammers will now bedescribed.

Supported in proper position under the plate 13 are stationary cams 68and 69. These are shown in Figs. 1, 2 and 7. Where but one row ofhammers is used only one cam will be required. A description of one ofsaid cams serves the purpose of illustrating both. The cam 68, as seenin Fig. 2 is an elongated plate which has its underneath surface cut toan arc corresponding to the circle in which the hammers and armaturelatches revolve, but it is slightly eccentric thereto. The lower end ofsaid cam is nearer to the latch arms of said hammers and the side faceof the cam is so formed that by the time they have reached the lower endof the cam, the armature latches have been moved over to the core; andthe hammers are prevented from swinging out by reason of the cam whichhas now taken the place of the armature latches in holding them in normal position. Should there be no current flowing through the coils 27 or31 at the time the hammers and armature latches leave the cam, thearmature latches immediately spring away from their core and assumetheir former position of locking the hammers in. But when a momentaryimpulse passes through the coil, the armature latch just leaving the camat that moment will be retarded by the magnetism just long enough forthe hammer to swing out before said armature latch returns to lock itin, and consequently a perforation will be made in the paper web 58 foreach impulse which is sent through the coil. Tt is immaterial whether ornot more hammers than one are freed by a single impulse, because theeffect of freeing two or three at once would be merely to lengthen thehole which corresponded to the impulse 5 and as the web is movinguniformly forward, any omission of impulse will result in an unpunchedspace in the web. Thus the operator composes his letters by acombination of perforations and spaces.

The electric circuits which enable the transmitter to thus select theletters will now be described. Said circuits are shown only in Fig. l.Current enters the machine by line wire from which it passes by a brush71 into the conducting ring 36. From ring 36 the current passes by wire72 to magnet coil 31 and thence by wire 73 to magnet coil 27. Frommagnet coil 27, the current leaves by wire 74, passes into conductingring 35 and thence by brush 75 to grounded wire 76. Thus for eachimpulse which comes over the line wire each of the magnet cores 26 and3() will be energized to hold the armature latch just at that momentleaving the cam and thus permit the corresponding hammer to swing freeof its retaining means.

lf current impulses of one polarity are to be used, the hammers andarmature latches must be arranged on the drum in staggered relation sothat if possible but one will be leaving the cam at any particularmoment. But where it is desired to operate the machine by diflierentpolarity currents the double punch is used and the armatures must eachbe polarized to its particular polarity so that it will be attracted andheld only by a current of one polarity. In that way the transmitter oroperator can select the polarity of the impulse and thus provide forreleasing a hammer in a predetermined row, and so compose his letters.

T have shown in Fig. 1 a means for automatically operating the clutch toeffect the feeding of the ribbon during the receipt of a message. Thisis accomplished by means of a local circuit which is left open at theterminal rings 77 and 7 8. One side of this circuit comprises thebattery 79, wire 80 which connects the battery with the magnet 55, wire81 connecting the magnet with a brush 82 which delivers the current tothe conducting ring 40 and a wire 83 which conducts the current to oneside of the above-mentioned terminal rings. The other side of saidcircuit comprises a wire 84 leading from the battery 79, a brush 85 towhich said wire conducts the current, said brush contacting with theconducting ring 39, and a wire 86 which conducts the current from saidconducting ring to the other side of said terminal rings. The manner ofautomatically closing this circuit is very simple. As a hammer swingsout a circuit closes 24 or 25 bridges over the gap and completes thecircuit, thus energizing the magnet 55. As stated above, the cam 55might be employed to maintain the clutch in constantly closed position,in which case the local circuit might be permanently opened.

l/Vhile I have shown and described my in vention in specific form, it isnot intended to limit the scope to the exact construction hereindisclosed. Numerous modifications in the details might be made withoutdeparting from the spirit of my invention. For instance, the machinemight be employed to operate any means of making an impression upon aweb. l do not limit my invention to the use of a perforator.

Having thus described my invention, the following is what T claim as newtherein and desire to secure by Letters Patent:

l. In an electromechanical perforator, the combination with a hammer andits retaining means; of mechanical means freeing said hammer from itsretaining means, and electrical means holding said hammer and retainingmeans in freed relation.

2. ln an electromechanical perforator, the combination with a hammer,and means engaging said hammer of mechanical means moving said engagingmeans away from said hammer, and electrical means holding said engagingmeans away from said hammer.

3. ln an electromechanical perforator, the combination with a hammer ofa retaining means fer said hammer, mechanical means for moving saidretaining means away from said hammer, and an electromagnet for holdingsaid retaining means away from said hammer.

4. In an electromechanical perforator, the combination with a hammer; ofa retaining means therefor, a cam for moving said retaining means awayfrom said hammer, and an electromagnet for holding said retaining meansaway from said hammer.

5. ln an electromechanical perforator, the combination with a rotatingmember, a hammer pivotally mounted thereon, a latch for said hammerrotating therewith, and an electromagnet rotating therewith capable ofholding said latch of a stationary cam for moving said latch from saidhammer and into engagement with said electromagnet.

6. Tn an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web 3 of arotating member, hammers earried thereby and tending to swing outward bycentrifugal force into position to operate said punch, means preventingsaid hammers from swinging outwardly, means for moving said preventingmeans away from said hammers, and means for holding the preventing meansaway from said hammers.

7. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web of a rotatingmember, hammers carried thereby and tending by centrifugal force toswing outwardly into position to operate said punch, means preventingsaid hammers from swinging outwardly, mechanical means for moving saidpreventing means away from said hammers, and a separate means forholding the said preventing means away from said hammers.

8. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web; of arotating member, hammers carried thereby and tending by centrifugalforce to swing outwardly into position to operate said punch, meansnormally preventing said hammers from swinging outwardly, mechanicalmeans for freeing said hammers from said preventing means, andelectrical means for holding the said preventing means free from saidhammers.

9. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web; of arotating carrier, hammers carried thereby and tending by centrifugalforce to swing outwardly into position to operate said punch, means forpreventing said hammers from swinging outwardly, a cam for moving saidpreventing means away from said hammers, and an electromagnetic meansfor holding said preventing means away from said hammers.

1 0. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web, a rotatingcarrier, hammers carried thereby and tending by centrifugal force toswing outwardly into position to operate said punch, and means tendingto hold said hammer against swinging outwardly; of a mechanical meansand an electrical means cooperating to selectively free said hammersfrom said holding means.

11. In. an electromechanical perforator, the combination with a rotatingcarrier, and hammers carried thereby tending to swing outwardly bycentrifugal force 3 of means for holding said hammers against suchswinging outwardly, and a mechanical means and an electrical meanscooperating to selectively free said. hammers from said holding means.

12. In an electromechanical perforator, the combination with a rotatingcarrier, and a plurality of hammers carried thereby and tending bycentrifugal force to swing outwardly; of a plurality of means normallyholding said hammers from swinging outwardly, a cam for moving saidholding means away from said hammers, and one electromagnet for holdingall of said holding means away from said hammers.

13. In an electromechanical perforator, the combination with a rotatingshaft, a carrier rotating therewith, a plurality of pivotally mountedhammers mounted thereon normally locked but tending by centrifugal forceto swing outward, means for selectively freeing said hammers, and apunch adapted to be operated by the impact of said hammers; of a web; afeed roller causing said web to travel ast said punch, and means forcausing said shaft and said feed roller to rotate together.

14. In an electromechanical perforator, the combination with a rotatingshaft, a carrier rotating therewith, a plurality of pivotally mountedhammers mounted thereon normally locked but tending by centrifugal forceto swing outward, automatically operated means for selectively freeingsaid hammers, and a punch adapted to be operated by the impact of saidhammers; of a web a feed roller causing said web to travel past saidpunch, and automatically operated means for causing said shaft and saidfeed roller to rotate together.

15. In an electromechanical perforator, the combination with a rotatingshaft, a carrier rotating therewith, a plurality of hammers on saidcarrier, and a punch adapted to be operated by the impact of saidhammers; of a web, a feed roller for moving said web past the punchingposition of said punch, and automatically operated means for impartingrotation to said feed roller from said rotating shaft.

16. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web 3 of arotating carrier, hammers carried thereby and tending by centrifugalforce to swing outwardly into position to operate said punch, means forpreventing said ham mers from swinging outwardly, a cam for moving saidpreventing means away from said hammers and for holding the hammers fromswinging out, and a separate means for retarding the return of saidpreventing means when the cam has left them.

17. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web; of arotating carrier, hammers carried thereby and tending by centrifugalforce to swing outwardly into position to operate said punch, means forpreventing said. hammers from swinging outwardly, a cam for .moving saidpreventing means away from said hammers and for holding the hammers fromswinging out, and an electrical means for retarding the return of saidpreventing means when the cam has left them.

18. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web; of a rotatincarrier, hammers carried thereby and tending by centrifugal force toswing outwardly into position to o erate said punch, means forpreventing sai hammers from swinging outwardly, a cam for moving saidpreventing means away from said hammers and for holding the hammers fromswinging out, and an electromagnet for retarding the return of saidpreventing means when the cam has left them.

19. In an electromechanical perforator, the combination with a movingweb, and a punch mounted in position to perforate said web; of arotating carrier, hammers carried thereby and tending by centrifugalforce to swing outwardly into position to operate said punch, anarmature comprising a plurality of armature latches for locking saidhammers, means for moving said armature latches away from said hammersand holding the hammers, and one electromagnet for holding said armaturelatches away from said hammers after the means which moved the armaturelatches away has left them.

20. In an electromechanical perforator, the combination with a rotatingshaft, a carrier rotating therewith, a plurality of pivotally mountedhammers mounted thereon normally lockedbut tending to swing outward,circuit closers on said hammers, means for selectively freeing saidhammers, and an impression means adapted to be operated by the im act ofsaid hammers; of a web, a feed roller for moving said web ast saidimpression means, means normal y inoperative to cause said shaft androller to rotate together, an electromagnet, a clutch operated therebywhen same is energized to render operative the said means to cause theshaft and roller to rotate together, and a circuit for energizing saidmagnet and provided with open terminals in position to be closed by saidcircuit closers on the hammers.

MILTON T. VESTON.

I/Vitnesses:

CURT voN GRUEBER, O. KNIGHT, Jr.

